Differentiated Video Worksheet, Quiz & Ans. for PBS - NOVA - Beyond the Elements: three episodes * - Two Differentiated Worksheets, Ans. Sheet, and Four Differentiated Quizzes for PBS - NOVA - Beyond the Elements: Reactions , Indestructible and Life* Season 48 Episode 17, 18 and 19.Each package has two differentiated video guides / worksheets and four differentiated quizzes are designed to guide students in viewing the video, learning the essential concepts maximizing time-on-task and assess